Julia Build (detailed description)

If you are behind a firewall, you may need to use the https protocol instead of the git protocol.

Be sure to configure the appropriate proxy server settings in the system, for example by setting the variables https_proxy and `http_proxy'.

Upon first compilation, the build automatically downloads the pre-built external dependencies. If you prefer to build all dependencies yourself or build on a system without network access during the build process, add the following to the `Make.user' file.

It takes 5 GB to build Julia, if all dependencies are assembled, and about 4 GB of virtual memory.

To perform a parallel build, use make -j N' and specify the maximum number of parallel processes. If the default settings in the build are not suitable for you and you need to set specific parameters (make), you can save them to the `Make.user file and place this file in the root of the Julia source code. The build will automatically verify the existence of the Make.user file and will use it if it exists.

You can create Julia builds outside the tree by specifying make O=<build-directory> configure on the command line. A directory mirror will be created with all the Makefiles needed to build Julia in the specified directory. These builds will share the source code files in Julia and deps/srccache'. Each build directory outside the tree can have its own `Make.user file, overriding the global Make.user file in the top-level folder.

If everything is working correctly, you will see the Julia banner and an interactive window where you can enter calculation expressions. (Library-related errors may be caused by the presence of old, incompatible libraries in the PATH variable. In this case, try moving the julia directory closer to the beginning of the PATH.) Note that most of the instructions above apply to Unix systems.

To launch julia from anywhere, you can:

Some parameters that can be set to control the Julia build are listed and documented at the beginning of the 'Make.inc` file. But it should never be edited for this purpose. Use Make.user instead.

Makefiles in Julia define convenient automatic print-<VARNAME> rules for outputting variable values, replacing <VARNAME> with the name of the variable whose value needs to be outputted. For example:

These rules are useful for debugging.

Now you should be able to run Julia as follows.

If you are building the Julia package for distribution on Linux, macOS, or Windows, read the detailed notes in the file. distributing.md.

If you previously downloaded julia using git clone, you can update the existing source tree using git pull instead of starting over.

Assuming that you have not made any changes to the source code tree that could conflict with updates from the upstream repository, these commands will run the build update to the latest version.

To avoid losing the results of your work, make sure you know what they are doing before executing these commands. git will not be able to undo these changes!_

Notes for different operating systems:

Notes for different architectures:

To build Julia, you need to install the following software:

In Debian-based distributions (for example, Ubuntu), they can be easily installed using apt-get:

Julia uses the following external libraries, which are automatically downloaded (or in some cases included in the Julia source code repository), and then compiled from the source code when you first run make'. The specific version numbers of these libraries that Julia uses are listed in https://github.com/JuliaLang/julia/blob/master/deps /[`deps/$(libname).version]:

If you already have one or more of these packages installed on your system, you can prevent Julia from compiling duplicates of these libraries by passing USE_SYSTEM_...=1 in `make' or by adding this line to `Make.user'. A complete list of possible flags can be found in `Make.inc'.

Please note that this procedure is not officially supported, as it introduces additional variability in the installation and versioning of dependencies, and is recommended only for system administrators. Unexpected compilation errors may occur because the build system will not perform further checks to ensure that the correct packages are installed.

Each pre-release and Julia release has a complete source code distribution and a lightweight source code distribution.

The full distribution contains the Julia source code and all dependencies, so Julia can be built from the source code without an internet connection. The lightweight distribution does not contain the source code of dependencies.

For example, julia-1.0.0.tar.gz ` — this is a lightweight source code distribution for the release of `v1.0.0 Julia, and `julia-1.0.0-full.tar.gz ` — this is a complete distribution of the source code.

If you need to build Julia from source using git checkout for Pkg, Tar, and Downloads, use make DEPS_GIT=NAME_OF_STDLIB when building.

For example, if you need to build Julia from source using git checkout for Pkg, use make DEPS_GIT=Pkg when building. The 'Pkg` repository is located in stdlib/Pkg and was created initially with HEAD disabled. If you are building from an existing Julia repository, you may need to perform a make clean first.

If you need to build Julia from source using git checkout of several stdlib libraries, DEPS_GIT should be a list of stdlib library names separated by spaces. For example, if you need to build Julia from source using git checkout for Pkg, Tar, and Downloads, use `make DEPS_GIT='Pkg Tar Downloads' when building.

The Julia statement assembly is an assembly that was created using FORCE_ASSERTIONS=1 and LLVM_ASSERTIONS=1'. To build an approval assembly, define both of the following variables in the 'Make.user file.

Please note that Julia approval builds will run slower than regular (non-approval) builds.

Sometimes there may be errors specific to 32-bit architectures. In this case, it will be useful to be able to debug the problem on a local computer. Most modern 64-bit systems support the execution of programs designed for 32-bit systems. Therefore, if you don’t need to recompile Julia from source (for example, you just need to test the 32-bit version of Julia without touching the C code), then most likely you can use the 32-bit Julia build for your system, which can be accessed at https://julialang.org/downloads /[official download files page]. However, if you need to recompile Julia from source, one option is to use a Docker container with a 32-bit system. At least for now, building the 32-bit version of Julia is relatively simple using https://hub.docker.com/r/i386/ubuntu [32-bit Docker images from Ubuntu]. In short, after configuring docker, you need to perform the following steps.

At this stage, the console of a 32-bit computer should be open (note that the uname command tells the architecture of the host computer, so the 64-bit architecture will be output, but this does not affect the Julia build). You can add packages and compilation code; when executing the exit command, all changes will be lost, so you should complete the analysis in one session or configure the copied script to configure the environment.

Next, run the following command:

(Please note that the sudo program is not installed, but it is not needed, since you are working with the root user rights and sudo can be omitted in all commands.)

Then add all the build dependencies, a console editor of your choice, the git program, and anything else you might need (for example, gdb, rr, etc.). Select the working directory, run the git clone command for the Julia repository, extract the branch you want to debug, and build Julia normally.

There are two types of assemblies.

If you want to update the dependency version number in deps/, use the following checklist.

Note.